[PATCH] D63477: [PowerPC] exclude ICmpZero Use in LSR if icmp can be replaced inside hardware loop.

[ChenZheng via Phabricator via llvm-commits]

shchenz updated this revision to Diff 206633.
shchenz added a comment.

Thanks for your comments @hfinkel .
Updated accordingly.

For the FIXME case, yes, I plan to fix it in a seperated patch later. Get your idea about fixing it by making SCEV recognize loops with uadd/usub intrinsic.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D63477/new/

https://reviews.llvm.org/D63477

Files:
  llvm/include/llvm/Analysis/TargetTransformInfo.h
  llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
  llvm/lib/Analysis/TargetTransformInfo.cpp
  llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
  llvm/lib/Target/PowerPC/PPCTargetTransformInfo.h
  llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
  llvm/test/CodeGen/PowerPC/addi-licm.ll
  llvm/test/CodeGen/PowerPC/ctrloop-ne.ll
  llvm/test/CodeGen/PowerPC/ctrloop-shortLoops.ll
  llvm/test/CodeGen/PowerPC/lsr-ctrloop.ll
  llvm/test/CodeGen/PowerPC/negctr.ll
  llvm/test/CodeGen/PowerPC/stwu-sched.ll
  llvm/test/CodeGen/PowerPC/unal-altivec.ll

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